Comprendre la substitution tritonique

In this video, we explore the tritone substitution chord, a fundamental harmonic technique in jazz and tonal music. After studying the tritone, a key interval in the tonal system and present in the dominant chord, we'll see how it allows us to replace one chord with another while maintaining the same harmonic function. Using G7 as an example, we'll show why Db7 can replace it thanks to the same tritone and a precise interval relationship. We'll also clarify why Db7 is chosen over C#7, despite their enharmonic relationship, by explaining the tonal implications and possible resolutions. The video concludes with a practical quiz: three dominant chords to analyze and find their tritone substitution chords. A concrete and educational way to deepen your understanding of the internal logic of our tonal system and enrich your harmonic progressions. 00:12 - Introduction to this video on tritone substitution 01:05 - Clear definition of tritone substitution 03:24 - Example of tritone substitution with the G7 chord 05:00 - Understanding why Db7 is the substitute for G7 (and not C#7) 07:05 - Quiz - find the tritone substitution chords for three dominant chords https://www.musiclic.com/la_substitut... #harmony #jazz #musictheory #tritonesubstitution #chords #pedagogy #learning